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By wolph42
#74764 Hi first post! And I'm looking for advice.

I want to build a Thermostat-board with

- ESP8266 (preferred Wemos D1)
- T sensor
- LCD (shield?)
- 2 buttons (UP/Down)
- Battery feed or more preferred: feed of mains (so an 220v AC--> 5v (or 3.3.?v) DC step down converter)
- 220V relay (shield ?)

I don't mind soldering a bit but preferably I click a couple of shields into one board. Problem is: what to get. I've been scouring over banggood and aliiexpress and there are a LOT of shields and modules and I don't even know whether the above configuration can be attached to the ESP (most likely it will, IRC 6 pins for LCD, 2 for the buttons, one ADC for sensor).

Bottom line I'm overwhelmed by choices and underteached in compatibility, hence I'm looking for advice.

EDIT: to give this topic a bit of focus, here some components I'm thinking off:
(is there a way to wrap hyperlinks on this arduino forum? I can't find any way)

ESP8266:
https://nl.aliexpress.com/item/HLK-PM03 ... 32180.html

OLED Shield:
https://nl.aliexpress.com/item/Free-Shi ... 10516.html

Sensor:
https://nl.aliexpress.com/item/TELESKY- ... 11214.html

Relay Shield:
https://nl.aliexpress.com/item/New-Rela ... 79321.html

Dual Base Shield:
https://nl.aliexpress.com/item/Free-Shi ... 69855.html

Step down convertor
https://nl.aliexpress.com/item/HLK-PM03 ... 32180.html

Again, I'm quite clueless whether this is all compatible with eachother and whether these are the best choices.

Thank you!
User avatar
By RichardS
#74827 Never does it take me 2 days to OK, been doing this 3 years... if you catch me before bed... its 8 hours, if I am awake its 3-4hrs.... :-) Even when I was crazy sick it was not 2 days ;-)

Hope you get answers I know people in the past have talked about Thermostats for their homes and furnaces...

RichardS